Split resistant fibre
AssigneeTen Cate Thiolon B.V.
InventorsGerjan van Voorst, Frank Pfeiffer, Niels Gerhardus Kolkman
Life of this patent
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Abstract
A fibre for use in artificial turf has an elongate cross-sectional shape defining a first face and a second face that meet at side edges of the fibre. The first and second faces having respective first and second ridges that are offset with respect to each other, such that the cross-sectional shape is 2-fold rotationally symmetric with no reflectional symmetry. The fibre may be an extruded monofilament and shows improved resilience over symmetrical fibres of similar dimensions.
Claims20
A fibre for use in artificial turf, the fibre having an elongate cross-sectional shape defining a first face and a second face that meet at side edges of the fibre, wherein a maximum thickness of the fibre is between 0.2 mm and 0.6 mm, determined based on a largest diameter circle that can fit within the cross-sectional shape and a ratio between the maximum thickness of the fibre and a length of a centre line extending between the side edges is between 0.3 and 0.6 and no part of the first and second faces crosses the centre line, wherein the largest diameter circle fits in a first position and a second position of the cross-sectional shape, wherein the first face has a first ridge which lies on a diameter of the largest diameter circle in the first position and the second face has a second ridge which lies on a diameter of the largest diameter circle in the second position, wherein the first ridge and the second ridge are offset with respect to each other and such that the cross-sectional shape is 2-fold rotationally symmetric with no reflectional symmetry.
A fibre for use in artificial turf, the fibre having an elongate cross-sectional shape defining a first face and a second face that meet at side edges of the fibre, the first and second faces having respective first and second ridges that are offset with respect to each other,
- wherein extremities of the side edges and extremities of the first and second ridges form a parallelogram and the first and second faces have concave portions such that surfaces of the fibre are displaced inwardly with respect to the surface of the parallelogram but no part of the first and second faces crosses a centre line extending between the side edges;
- and
- wherein a maximum thickness of the fibre is determined based on the largest diameter circle that can fit within the cross-sectional shape and a ratio between the maximum thickness of the fibre and a length of the centre line is between 0.25 and 0.6.
Dependencies are inferred from the claim text.